http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1095076-A4
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_43144c2572752089fd0370469a069235 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F265-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F283-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F271-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F283-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F291-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B1-043 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F283-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F283-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F291-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B1-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F265-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F271-02 |
| filingDate | 1999-07-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b0b4ea93aabf682625d835abde2d5dbe http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7501b53d4b9474e963e0195a65c30a72 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_830ee85ff0e407543e6a7c7eda1fa6f1 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_28e3c6366952699c696b881727c58552 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_02b0583dddb4220422dd6ff0df14aea8 |
| publicationDate | 2002-11-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-1095076-A4 |
| titleOfInvention | INTERMEDIATE POLYMERS NETWORK OF HYDROPHILIC HYDROGELS FOR CONTACT LENSES |
| abstract | An interpenetrating polymer network (IPN) composition and a process for the manufacture of hydrogel contact lens using the invention material. The polymeric materials are formed by polymerization of: (1) an unsaturated alkyl(meth)acrylate or its derivatives such as 2-hydroxyethyl methacrylate as the principle monomer; (2) optionally vinyl containing comonomer(s) to enhance the resulting hydrogel water absorbing capability; (3) polymerizable multi-functional crosslinking agent(s); (4) an irradiation initiator and/or thermal initiator; (5) optionally other additives to impart the resulting hydrogel specific properties such as ultra-violet blocking ability and handling colors; in the presence of a soluble, hydrophilic IPN agent such as polyvinylpyrrolidone (PVP) or poly-2-ethyl-2-oxazoline (PEOX) with a specific molecular weight range. The novel hydrophilic hydrogel material in the present invention can be used to produce a spherical contact lens, a toric contact lens, a multifocal contact lens, a toric-multifocal contact lens, and other medical devices. The inventive hydrogel material shows a low degree of surface friction, a low dehydration rate, and a high degree of biodeposit resistance. |
| priorityDate | 1998-07-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 383.